Last data update: 2014.03.03

R: Binary Flip (Not) Operator
bitFlipR Documentation

Binary Flip (Not) Operator

Description

The binary flip (not) operator, bitFlip(a, w), “flips every bit” of a up to the w-th bit.

Usage

bitFlip(a, bitWidth=32)

Arguments

a

numeric vector.

bitWidth

scalar integer between 0 and 32.

Value

binary numeric vector of the same length as a masked with (2^bitWidth)-1. NA is returned for any value of a that is not finite or whose magnitude is greater or equal to 2^{32}.

Author(s)

Steve Dutky

See Also

bitShiftL, bitXor, etc.

Examples

 stopifnot(
  bitFlip(-1) == 0,
  bitFlip(0 ) == 2^32 - 1,
  bitFlip(0, bitWidth=8) == 255
 )

Results